Hello All,
Very new to the Ford world and picked up a 2001 2wd extended cab. The guy I got it from did a 2003 FFV swap, as the original 3.0 had blown. He messed up the OEM 2001 wiring, so I purchased another one from an online salvage yard. My question is I cannot find one last connector for some sort of sensor that comes out of the harness close to the passenger side injectors ( Rear One mainly )
It is a dark gray plug with 2 wires. ( Light Blue w/Red Stripe and Black w/ Pink Stripe ) Any help would be helpful as I am banging my head around for a month on this.

 

Neither of those wire colors go to the computer, so not engine related

Light Blue with red stripe was used in 2001 for the dash lights
This would have voltage with parking lights or head lights on

Black with PINK stripe was used for backup lights on Fords for many years, in 2001 I show black/pink for cargo light
Test for 12v with dome light on, using dimmer switch to activate, may be for engine bay light?

 

Thanks RonD, I will check that when I get back to the truck. Also, looking at that original harness that I removed, The same plug has green w/ red and gray w/ red stripes

 

Grey/red and light green/red is ECT Sensor plug in

Same colors were used in 2001 or 2003 for ECT sensor

 

Where is the ECT sensor? I can find the one temp sensor near the top Rad hose with its connector, but can;t seem to locate this other temp sensor? Of course this had to be the tape that fell off the sensor when I marked everything. It seems this connector can only go so far in any direction. I am not sure why I can see this...

 

Image here of 3.0l temp units: https://www.ranger-forums.com/attach...ant-sensor.jpg

SENDER has red connector, often 1 wire not 2
Sensor Grey connector, always 2 wire